Method for measuring viscoelasticity of gel particles

A gel particle and viscoelasticity technology, applied in the field of gel particle viscoelasticity evaluation, can solve the problems of long test time, decreased elasticity and strength, unable to truly reflect the gel particle viscoelasticity, etc., and achieve rich evaluation methods and test time. Short, the effect of improving test accuracy and test efficiency
CN105181529AActive Publication Date: 2015-12-23BC P INC CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2015-12-23

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Abstract

The invention provides a method for measuring viscoelasticity of gel particles. The method includes the steps of firstly, preparing a gel particle dispersion system, and making the gel particle dispersion system sufficiently swell; secondly, conducting a creep recovery test on gel particles; thirdly, processing experimental data, and evaluating viscoelasticity of gel particles. The method is put forward on the basis that gel particles have a certain creep property, the creep recovery test of gel particles is conducted through a rheometer, and the viscosity response and the elasticity response of gel particles can be separated. By means of the put-forward rheology method for measuring viscoelasticity of gel particles through the creep recovery test, the true viscoelasticity of gel particles can be measured, the test time is short, measurement accuracy and measurement efficiency are improved, and evaluation methods of gel particles are abundant.
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Description

technical field

[0001] The invention belongs to the technical field of viscoelasticity evaluation of gel particles, in particular to a method for measuring the viscoelasticity of gel particles. Background technique

[0002] Most of the oilfields in my country have entered the middle and late stage of development, and the injected water often only enters along the fractures or large pores, causing the production wells to break through water prematurely, the water content increases rapidly, and even more serious, the oil wells will be flooded; on the other hand , because the mobility of water is much larger than that of crude oil, the swept volume of injected water is small, and the large amount of remaining oil in the matrix system is produced to a small degree, and the oil displacement efficiency is low. If the water is injected continuously, it will cause an invalid circulation of the injected water and increase the production cost.

[0003] In order to improve oil recovery...

Claims

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